diff --git a/index.d.ts b/index.d.ts
index eaba4d4..bbab7a1 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -150,7 +150,7 @@ declare interface Schema {
 }
 
 declare class Parameter {
-  definition: Object
+  definition: ParameterObject
   definitionFullyResolved: Object
   operationObject: Operation
   pathObject: Path
diff --git a/package.json b/package.json
index fc9192c..b9bec37 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "yasway",
-  "version": "1.5.12",
+  "version": "1.5.13",
   "description": "A library that simplifies Swagger integrations.",
   "main": "index.js",
   "types": "index.d.ts",